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Chapter 5. Troubleshooting
This section contains troubleshooting information for the wireless display adapter. If you encounter any of
the following problems when using the wireless display adapter, refer to the corresponding answers.
• I cannot install the Intel WiDi software into my notebook computer.
To solve the problem, do the following:
1. Check if the notebook computer meets the system requirements for Intel WiDi at:
http://supportkb.intel.com/wireless/wireless-display/templates/selfservice/intelwidi/#portal/1026/article/2511
2. Check if the following software and drivers installed in your notebook computer are the most-up-date:
– Intel Graphics Driver
– Intel Wireless Driver
– Intel WiDi software
3. Check if you have selected Integrated Graphics as the graphics card in the BIOS operating system
on your notebook computer.
If the problem still persists, contact Lenovo for technical support.
• My notebook computer has a Realtek Wi-Fi driver, but cannot meet the system requirements for
Intel WiDi.
• Depending on the operating system on your notebook computer, do the following:
– For Windows 7: Install the Lenovo QuickDisplay program. The Lenovo QuickDisplay program can
be supported by specific models of the notebook computer. To check if the Lenovo QuickDisplay
program can be installed into your notebook computer, go to the Lenovo Support Web site at:
http://www.lenovo.com/support/WDA.
– For Windows 8: Update the operating system to Windows 8.1. Then update the graphics driver and
Realtek driver to the latest version at: http://www.lenovo.com/support.
– For Windows 8.1: Update the graphics driver and Realtek driver to the latest version at:
http://www.lenovo.com/support.
• I cannot connect my notebook computer to the wireless display adapter with the latest Intel WiDi
software.
To solve the problem, do the following:
1. Ensure that the Intel Graphics Driver and the Wi-Fi driver are the most-up-date.
2. Remove the wireless display adapter from the device list of your notebook computer. Then restart the
notebook computer.
3. If your notebook computer can be connected to the wireless display adapter when it is not connected
to any Wi-Fi network, but the connection fails once the notebook computer is connected to a Wi-Fi
network, you might have met the dynamic frequency selection (DFS) issue. To solve the DFS issue,
refer to the Chapter 5 "Troubleshooting" on page 17.
• I have met with the DFS issue.
To solve the DFS issue, do the following:
1. Contact the IT management support to set the Access Point at a Wi-Fi channel in the 2.4 GHz band
or at a non-DFS channel in the 5 GHz band.
2. Set your notebook computer to use a Wi-Fi channel in the 2.4 GHz band by doing the following:
a. Open the Device Manager window.
b. Right-click the network adapter of your notebook computer. Then click Properties.
© Copyright Lenovo 2014
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